<!DOCTYPE html> 
<html lang="en"> 
<head> 
<meta charset="UTF-8"> 
<meta name="viewport" content="width=device-width, initial-scale=1.0"> 
<title>示例16</title> 
<script> 
    function add([x, y]) { 
    console.log(x + y); //30 
    } 
    add([10, 20]) 
    </script> 
 </head> 
 <body></body> 
 </html> 